3431231211321 has 24 divisors (see below), whose sum is σ = 4968417734280. Its totient is φ = 2281860000000.

The previous prime is 3431231211301. The next prime is 3431231211389. The reversal of 3431231211321 is 1231121321343.

3431231211321 is a `hidden beast` number, since 3 + 4 + 3 + 12 + 312 + 11 + 321 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 171632061225 + 3259599150096 = 414285^2 + 1805436^2 .

It is not a de Polignac number, because 3431231211321 - 2⁶ = 3431231211257 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3431231211301) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 54867571 + ... + 54930071.

It is an arithmetic number, because the mean of its divisors is an integer number (207017405595).

Almost surely, 2^{3431231211321} is an apocalyptic number.

It is an amenable number.

3431231211321 is a deficient number, since it is larger than the sum of its proper divisors (1537186522959).

3431231211321 is a wasteful number, since it uses less digits than its factorization.

3431231211321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77417 (or 77414 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

Adding to 3431231211321 its reverse (1231121321343), we get a palindrome (4662352532664).

The spelling of 3431231211321 in words is "three trillion, four hundred thirty-one billion, two hundred thirty-one million, two hundred eleven thousand, three hundred twenty-one".